Home / 1,556,313.92-2,147,878.56-912,275.36

Finding the Fourth Proportional to 1,556,313.92, 2,147,878.56 and 912,275.36

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Solution

The fourth proportional to 1,556,313.92, 2,147,878.56 and 912,275.36 is: 1,259,036.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,313.92 : 2,147,878.56 = 912,275.36 : x
  2. Step 2: Convert to fraction form
    1,556,313.92/2,147,878.56 = 912,275.36/x
  3. Step 3: Cross multiply
    1,556,313.92x = 2,147,878.56 × 912,275.36
  4. Step 4: Simplify right side
    1,556,313.92x = 1,959,456,686,560.28
  5. Step 5: Solve for x
    x = 1,959,456,686,560.28/1,556,313.92
  6. Step 6: Final answer
    x = 1,259,036.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.